2Bring a large pot of salted water to a boil. Add peppers, reduce heat, and simmer until tender but still firm, about 5 minutes. Drain and set aside.
3Heat butter in a medium skillet over medium heat. Sauté reserved chopped pepper, onion, and celery in hot butter until tender, 3 to 5 minutes. Stir in crushed tomatoes, tomato sauce, and garlic. Season with 1 ½ teaspoons salt, basil, oregano, and ¼ teaspoon black pepper. Simmer uncovered for 10 minutes.